Nice try but Donald Derangement Syndrome is in full swing.
They will continue to cry about Donald running third party even as Donald is leading in the GOP race.
Donald Trump will not be the GOP nominee. Eventually he is going to have to articulate how he is going to do all the wonderful things he claims he is going to do, and he won't be able to do it. Bluster and throwing red meat to the base will only get him so far. Due to the fact he changes his positions depending entirely on what his needs are at that moment in time, there isn't a way to have much confidence in this statement. It's good that he said it, but I doubt many believe him.
I dare Trump to run for a third party. He’s not stupid enough to spend his own money on a campaign.